package com.foreknow.elmboot.mapper;

import com.foreknow.elmboot.po.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.sql.SQLException;
@Mapper
public interface UserMapper {
    /**
     * 根据用户编号与密码查询用户信息
     * @param userId
     * @param password
     * @return
     */
    @Select("select * from user where userId = #{userId} and password = #{password}")
    public User getUserByIdByPassDao(String userId, String password);

    /**
     * 根据用户编号查询用户表返回的行数
     * @param userId
     * @return
     */
    @Select("select count(*) from user where userId = #{userId}")
    public int getUserByIdDao(String userId);

    /**
     * 向用户表中添加一条记录
     * @param user
     * @return
     */
    @Insert("insert into user values(#{userId},#{userName},#{password},#{userSex},null,1)")
    public int saveUserDao(User user);

}
